Sd1540 B 3 point problems

Neil1982 · Jun 6, 2022

My 3 point will only lift when cold and at that it will lift and then drop with weight on it. I have replaced the piston O rings and the problem still persisted.
Any ideas what else it could be?

I have a loader on it and it works perfectly.

bmaverick · Jun 8, 2022

Neil1982 said:
My 3 point will only lift when cold and at that it will lift and then drop with weight on it. I have replaced the piston O rings and the problem still persisted.
Any ideas what else it could be?

I have a loader on it and it works perfectly.

Did you check out your other thread posting. I provided the manuals.

Shibaura 1540b 3 point won’t lift

I just purchased a Shibaura 1540b and it was having hydraulic issues caused be a clogged screen. After draining the oil and cleaning the screen the loader works perfectly but the 3 point doesn’t want to lift. It will only lift while cold or if I shut down the tractor for a few min but sometime...

www.tractorbynet.com

Bet there are other o-rings in the system to check. And it may be a diverter valve being stuck too.

Neil1982 · Jun 15, 2022

So I have replaced the O rings on the piston, honed the cylinder, replaced all O rings in the control valve, flushed all the hydro fluid and put a new screen in and I am still having the issue where it won’t lift. Any one have a suggestion as to what else it could be? Again front loader works perfect.

rhoule1212 · Oct 13, 2023

Neil1982 said:
So I have replaced the O rings on the piston, honed the cylinder, replaced all O rings in the control valve, flushed all the hydro fluid and put a new screen in and I am still having the issue where it won’t lift. Any one have a suggestion as to what else it could be? Again front loader works perfect.

Old post but I’ve been having the same issue. Did you ever figure out what it was?

StanT · Jul 1, 2024

I just acquired a 1980 shibaura sd1500b, 3 point lift picks up good at first start,, but will ease back down (grader box 4ft), hotter gets the worse it gets. I am totally new to tractor, all decals and such are worn off, no book on it, I dont even iknow how or where to check hydraulic fluid, what type it takes or anything ! Need some good help ! Thanks